Citizen SR-270X College - Page 34

EX – 13
File name :
SR100DCollege_E_Example_110302_HDBR100DE04.doc
version : 10/11/23
Math D S DISP
Bx 13
[ = ]
195
Math D S
180÷ B
[ = ]
12
Example 49
¾
Enter X and Y for the following data using linear regression (A+BX),
then find out n= 8,
x
= 2.875, y = 6.875, xσn = 1.053268722,
yσn-1= 1.125991626, maxX = 4.
Σ
x
2
= 75, and A=4 and estimate
x
ˆ
= ? for y = -3 and
y
ˆ
= ? for x = 2
X
1 2 3 4
Y
5 6 7 8
FREQ.
1 2 2 3
Frequency?
[ ON ] [ 2nd ] [ SET UP ] [
T
] [ 3 ]
(STAT)
1:ON 2:OFF
Math D
▍
[ 1 ] ( ON )
1 : 1-VAR 2 : A+BX
3
: -
+
C
X
2
4
: l
n
X
5
: e
^
X
6
:
A
• B
^
X
7
:
A
• X
^
B
8
: 1
/
X
[ MODE ] [ 2 ] ( STAT )
STAT D
X Y FREQ
3
3
7
2
4
4
8
3
5
[ 2 ] (A+BX) 1 [ = ] 2 [ = ] 3 [ = ] 4
[ = ] [
d] [f] 5 [ = ] 6 [ = ] 7 [ = ] 8
[ = ] [
d] [f] 1 [ = ] 2 [ = ] 2 [ = ] 3
[ = ]
STAT D
▍
[ AC ]
0
STAT D
n
[ 2nd ] [ STATVAR ] [ 5 ] [ 1 ] [ = ]
8